1、ADJUSTABLE DANDLE: You can adjust the handle up or down by turning this wheel right or left to find a grasp that is comfortable for you. Suitable for different ages and users 2、ERGONOMIC DESIGN: The ergonomic bionic handle design is designed to fit your fingers, providing a secure and comfortable grip for improved performance. 3、LARGE LCD SCREEN: The large LCD screen displays all measurements clearly, allowing for easy reading of results. Automatic storage and record feature allows for later reference. 4、HIGH ACCURACY: Equipped with high precision sensor, our hand dynamometer offers high measurement accuracy, ensuring precise and consistent readings. 5、WIDE APPLICATION: The hand dynamometer is an ideal tool for educational purposes at home or school, offering easy and accurate measurements of hand and grip strength. Item Type: Hand Dynamometer Material: ABS Battery Type: 2 x AAA Batteries (Batteries included) Battery Capacity: 2 x 900mAh 1 x Hand Dynamometer 2 x Battery 1 x User Manual